/**
 * Budget-class selection.
 *
 * Budget classes define bounded dimensions. Operator ceilings remain
 * authoritative. Unused budget is not interpreted as failure. A finalization
 * reserve is mandatory. Escalation requires available reserve. Candidate
 * scores are normalized for the budget class so comparison avoids rewarding
 * unlimited budgets.
 */
import type { BudgetClass } from "./types.js";
export interface BudgetBounds {
    maxModelCalls: number;
    maxToolCalls: number;
    maxSubagents: number;
    maxRetrievalQueries: number;
    maxContextTokens: number;
    maxOutputTokens: number;
    maxWallTimeMs: number;
    maxCostUsd: number;
    finalizationReserveRatio: number;
}
export declare const BUDGET_CLASSES: Record<BudgetClass, BudgetBounds>;
export interface BudgetSelectionInput {
    budgetClass: string;
    operatorCeiling?: Partial<BudgetBounds>;
}
export interface BudgetSelectionResult {
    budgetClass: string;
    bounds: BudgetBounds;
    finalizationReserve: Record<string, number>;
    operatorCeilingApplied: boolean;
}
/**
 * Select budget bounds for a class, intersecting with operator ceilings.
 * Operator ceilings are authoritative and always win.
 */
export declare function selectBudget(input: BudgetSelectionInput): BudgetSelectionResult;
/** Whether escalation is permitted given budget usage and the mandatory reserve. */
export declare function canEscalate(used: {
    costUsd?: number;
    wallTimeMs?: number;
    modelCalls?: number;
}, bounds: BudgetBounds): boolean;
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